Improvement in harvesters



UNITED STATES PATENT QEETCE.

l,HENRY w. PELL, or ROME, NEW YORK.

IMPROVEMENT IN HARVESTERS.

Specification forming part of Letters Patent No. 71,906, dated December10, 1867.

To a-ZZ whom it 'may concern:

Be it known that I, HENRY W. PELL, of Rome, in the county of Oneida andState of New York, have invented certainv new and useful Improvements inDraft Attachments for Harvesters 5 and I do hereby ydeclare that thefollowing is a sufficiently full, clear, and exact description thereofto enable any one skilled in the art to which my invention appertainslto make and useit, reference being had to the accompanying drawings,which are made a part of this specification, and in which- Figure lrepresents a side elevation of a portion of the tongue and draftattachments of a mowing-machine; Fig. 2, a transverse section of thesame at .r x, Fig. 1.

Similar letters of reference indicate corresponding parts in both views.

My improved draft attachment, in its preferred form, consists of acarriage with grooved wheels running upon a ribbed guideway or strapattached to the tongue, a double-tree bolt projecting from the center ofsaid carriage, and a draft-clevis mounted ndepend ently of thedouble-tree upon the same bolt. The customary draft-chain extendsrearward and downward to the main frame of the machine, and the partsare so constructed and arranged as to combine thev following`advantages:

First. The carriage by which the Whitfietrees and draft-clevis aresupported and attached sustains the vertical and lateral strain of thedraft with the smallest possible friction and wear, and without violenceto any part of the machine.

Second. The free-play of the draft-carriage upon the tongue under anydegree or direction of strain is insured by the central attachment ofthe whiftletree-bolt.

Third. The double-tree or evener may oscillate freely on its boltWithout any control or resistance from the clevis from which thedraftchain extends to the frame of the machine.

In the drawings, T represents a portion of the tongue of a mowing orreaping machine, and S a rigid metallic strap or loop attached thereto,and constituting the guideway of a carriage, C, whose wheels c c aregrooved to iit over a rib, s, upon the guide-strap S. B is thewhiftletree-bolt projecting rigidly from the center of the carriage C,and D represents the double-tree adapted to oscillate upon the saidbolt. The draft-Clovis is mounted upon the bolt B in such a manner asnot to interfere with the free oscillation of the double-tree. Frepresents a portion of thc draft-chain, which extends from the clevis Eto any suitable part of theframe of the machine.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-' l. The carriage G, supported at both endson Wheels or rollers o c, running on a guideway, S, substantially as andfor the purposes specified.

2. The rib or groove joint between the friction-rollers and guideway tosustain the lateral pressure, as set forth.

3. The clevis-pin or whifdetree-bolt B, at cached to the center of thecarriage C.

4. The independent attachment of the draftclevis to the whifdetreeboltto permit the independent 4oscillation of the whiflletree wit-l1- outaffecting the clevis.

H. W. PELL.

Witnesses OcTAVIUs KNIGHT, J. E. M. BOWEN.

